Attachment for adding-machines.



No. 666,643. Pgtontod Ian. 29, l90l. F. M. BULLOCK & F. C. SCHATZ.

ATTABHIENT FOR ADDING MACHINES.

(Application ma Apr. 11, 1900. 2 sham-sum a.

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No. 666,643. Patented Ian. 29, l90l.

F. M. BULLOCK C. SCHATZ. ATTACHMENT FOR ADDING MACHINES.

(Application filed Apr. (N o J! o d e I.)

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UNITED STATES PATENT OFFICE.

FRANK M. BULLOCK AND FREDERICK C. SCHATZ, OF PITTSBURG, PENNSYLVANIA.

ATTACHMENT FOR ADDING-MACHINES.

SPEQIFIGATION forming part of Letters Patent No. 666,643, dated January 29, 1901.

Application filed April 11, 1900. berial No. 12,493. (No model.)

To all whom it may concern.-

Be it known that we, FRANK M. BULLooK and FREDERICK 0. Serum, citizens of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Attachments for Adding-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new an useful improvements in attachments for adding-machines, and has for one object the provision of novel means whereby an intermittent reciprocating movement is obtained from a continuously-driven shaft.

The herein-described invention has for its further object to provide novel mechanical means attached to the operating-lever of an adding, registering, computing, or like machine that will automatically impart movement to said operating-lever at intervals, allowing suificient time between the intervals to register the figures desired.

Our invention further aims to provide an attachment of this character that will possess decided advantages to be hereinafter more particularly described, and specifically poin ted out in the claims.

The present invention further contemplates to construct an attachment wherein both a uniform movement is obtained and a steady operation of the lever assured at all times; furthermore, to provide novel means whereby the attachment may be easily placed in an inoperative position when desired.

With the above and other objects in view the invention finally consists in the novel construction, combination, and arrangement of parts.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, and wherein like numerals of reference indicate corresponding parts throughout the several views, in which- Figure 1 is a front elevation of our improved attachment. Fig. 2 is a side elevation of the same. Fig. 3 is a front view of a modified form of our invention. Fig. 4 is a side elevation thereof. Fig. 5 is a side elevation of the mechanism as it appears when in an inoperative position Fig. 6 is a perspective view of the trip-lever and guide. Fig. 7 is a longitudinal sectional view of the guide. Fig. Sis a detail view of the clamp employed for securing the end of the belt.

Referring to the drawings by reference-nth merals, 1 indicates a suitable housing, upon which is rotatably mounted a shaft 2, having removably secured thereto a worm-wheel 3, adapted to mesh with and be operated by a worm 4t, secured to and operated. by an electric motor or other suitable driving means. (Not shown in the drawings.) Upon the shaft 2 is also arranged a pulley 5, carrying a pin 6.

The reference-numeral 7 indicates a triplever which is supported and hinged, as at 8, said lever extending upwardly through the slotted guide 9 and terminating in a bentover portion 10. The lever 7 carries a triparm ll, the latter being hinged, as at 12, and having connected thereto a rod 13, encircled by the coil spring 14, said rod 13 being adapted to pass through said lever 7 and terminates in a head 15. A belt 16 is connected to the trip-lever 7 by means of a set-screw 17, arranged in the bent-over portion 10, said belt 16 being adapted to pass under the pulley 18, arranged in the slotted guide 9, and passes upwardly, connecting with the operating-lever 19 of the adding-machine 20. The said belt also passes through the slot formed in the table 21, the latter serving as a support for the adding-machine. The slotted guide 9 is hinged at its rear end, as at 22, to a suitable upright 23.

v A coil-spring 24: is secured to the under face of the table and engages the upper portion of the slotted guide 9 and serves to raise the guide 9 when released. Lugs 25 are also secured to the upper face of the forward portion of the guide 9, in which is pivotally secured a lever 26, extending upwardly through the table 21 and carries at its upper end a head 27, adapted to engage in the fork28, secured to the upper face of the table and extending over the slot formed therein. Upon the under face of the guide 9, near the forward end thereof, is also secured a staple 29, adapted to receive a cord 30, having arranged at its lower eX- tremity a foot-lever 31. A coil-spring 32 is arranged to en the trip-lever 7, the other end being secured to the floor, said spring being preferably set at an angle and serves to normally retain the trip-arm 11 in close proX- imity to the pin 6, arranged upon the pulley 5.

The operation of our improved device is as follows: Suitable power being communicated to the worm +1, which is adapted to mesh with the worm-wheel 3, rotating the shaft 2 and imparting movement to the pulley 5, carrying the pin 6, which is adapted to engage at each revolution of the pulley-wheel the triparm 11, depressing the spring 14 and imparting movement to the trip-lever '7, therebyoperating the belt 10 and causing the operatinglever 19 to be drawn downwardly, thereby operating the adding-machine in the ordinary manner. As the pin 6 of the pulley 5 passes the trip-arm 11 the spring 82 will serve to return the trip-lever 7 to its normal position, and the lever 1.) being also spring-actuated will again assume its normal position until the pin 6 again is engaged by the trip-arm 11, when the operation will be repeated.

In order to place the mechanism in an inoperative position, the lever 26 is disengaged from the forked end 28 and the spring 24 will serve to raise the slotted guide, therebyloosening the belt 16, as shown in Fig. 5 of the drawings, and thus placing the mechanism in an inoperative position. When it is desired to again operate the mechanism, the foot-lever 31 is operated, pressing downwardly the slotted guide 9, and with it the lever 26, to a point where the head engages in the forked end 28 and the operation will then be again continuous.

The trip-arm 11 is so arranged as to be engaged by the pin 6 during one-fourth of its entire revolution, thereby affecting a movement of the operating-lever one-fourth of the time and providing for an interval threefonrths of the time, which will allow the operator to register the desired figures upon the adding-machine.

When it is desired to tighten the belt 16, the thumbscrew 17 may be loosened and the belt drawn taut to the desired degree.

From the foregoing description the many advantages obtained from our improved attachment will be readily apparent, and it is thought a further description of the same is unnecessary.

It will be noted that various changes may be made in the details of construction without departing from the general spirit of our invention.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a device for converting rotary into reciprocating motion, the combination with a driven shaft, of an operating-lever, a triplever, a belt connected to said operating-lever and to said trip-lever, and means carried by the driven shaft for actuating said trip-lever, belt and operating-lever, substantially as described.

2. In a device of the character described, the combination with an operating-lever, a trip-lever, and a belt connecting said levers, of a driven shaft carrying means to engage the trip-lever and impart an intermittent movement to the operating-lever, and means for discontinuing the intermittent movement of the operating-lever without discontinuing the rotary movement of the shaft.

3. In a device of the character described, the combination with a driven shaft, of an opcrating-lever, a triplever connected to said operating-lever, a hinged trip-arm carried by said trip-lever, and means carried by the driven shaftto engage said trip-arm to act-uate the trip-lever and operating-lever, substantially as described.

4.. In a device of the character described, the combination with an operating-lever, a trip-lever, and a flexible connection between said levers, of a driven shaft carrying means to engage the triplever and impart an intermittent movement to the operating-lever, and means for discontinuing the intermittent movement of the operating-lever without discontinuing the rotary movement of the driven shaft.

5. In a device of the character described, the combination, with an operating-lever, a trip-lever, flexible connections between said operating-lever and the trip-lever, and a hinged trip-arm carried by said trip-lever, of means adapted to rotate and intermittently engage with the hinged tri p-arm to actuate the trip-lever and impart an intermittent movement to the operating-lever.

b. In a device of the character described, the combination with the operating-lever, of a hinged trip-lever, flexible connections between said trip-lever and the operating-lever, and means adapted to rotate and intermittently engage with the trip-lever to impart an intermittent movement to the operatinglever.

7. In a device of the character described, the combination, with the operating-lever, of a hinged trip-lever, connections between said trip-lever and the operating-lever, a driveshaft carrying means for intermittently actuating the operating-shaft, and means for discontinuing the intermittent movement of the operating lever irrespective of the rotary movement of the drive-shaft.

In testimony whereof we affix our signatures in the presence of two witnesses.

FRANK M. BULLOCK. FREDERICK O. SCIIATZ.

\Vitnesses:

J OHN NOLAND, J. P. APPLEMAN. 

